Filling clamping means for looms



I. W. MABRY I FILLING CLAMPING MEANS FOR LOOMS Sept. 12, 1950 2 Sheets-Sheet 1 Fild A ril 26, 1948 [144 W Mnaev,

Sept. 12, 1950 l. w. MABRY FILLING CLAMPING MEANS FOR LOOMS 2 Sheets-Sheet 2 Filed April 26, 1948 3 1 WWW/KM? 11 441 14/ MIBRY.

Patented Sept. 12 1950 UNITED STATES. P A 'llENT" oFFIcE' 2,522,290 FILLINGOLAMPING MEANs'Fon moms: Ivan W. Mabry, Pacolet,S. 0.- Application April as, 1948, SerialNo. 23,364,

2 Claims; (-01. 139-372) This invention relates to textile machinery and more especially to improvements in weft or filling thread holding devices for looms.

This invention broadly comprises means for clamping aweft or filling thread against the rear vertical plateon the shuttle box on a lay after the shuttle has 'passed out of theshed formed by the warp threads and into the shuttle box, at which time the lay is in its beat-up position, to thus hold the weft or filling thread taut while the weft thread is engaged by the lower free end of an improved filling fork to thus tilt the same and to thus prevent the loom from stopping.

It is an object of thisinvention to hold the weft or filling thread taut as heretofore described,

so that the conventional grid, which is normally disposed between the reed and the shuttle box, may be eliminated.

This grid has heretofore been disposed adjacent the path of the weft or filling thread as the shuttle passes from the shed formed by the warp yarns into the shuttle box and, as the lay moves forwardly to the beat-up position, the weft or filling thread has heretofore been moved against the grid by the conventional filling fork which has heretofore been adapted to pass into slots formed by the grid and to thus tilt the conventional filling fork. When a filling thread has been used that is of very short fibre material or has very little twist to the same, the grid has heretofore collected a substantial amount of lint from the weft thread and this lint would fill the spaces in the grid and although the filling thread may be broken, the filling fork would still be caused to tilt and the loom would continue to run until this defect in the cloth was observed by the operator of the loom. Also, short pieces of thread disposed across the grid will give a false indication and not stop the loom using the old grid and the old filling fork.

Itis another object of this invention to provide resilient means for grasping a weft or filling thread as the lay moves to a beat-up position, said resilient means being mounted on more than one lateral guiding member and one of said guiding members being adjustable to adjust the resilient means so that it will engage and grasp the weft or filling thread precisely at the time intended as the lay moves to a beat-up position, or forwardly, said resilient means also being adbeen "stated, other objects will appear as the description proceeds, when taken in connection with the accompanying drawings, in which:

Figure 1 is a perspective view, of the left-hand portion of a lay, portions of a loom frame and associated parts, and showing the weft thread clamping means in the position it will occupy when the lay is inits rearmost position;

Figure 2 is a plan view of the apparatus showing the gooseneck with which it is associated and is taken along the line 22 in Figure 1;

Figure 3 is a vertical sectional view taken along the line 3- -3 in Figure l and showing the lay in abeat-up position; I

Figure 4 is a view similar to Figure 3 but showing the lay in its rearmost position.

Referring more specifically to the drawings, the numeral [0 indicates a lay on which the lower plate I l of a conventional shuttle box is mounted, and this shuttle box also has integral therewith a vertically disposed plate l2, said plate being secured to a conventional sword I3, and this sword l3 also has securedthereto, by a bolt I4, one end of a reed cap I5. Mounted between the reed cap 15 and the lay in is a vertically disposed reed 20 through the dents of which 'a plurality of warp yarns 2| are drawn and suitable harness frames, not shown, for a shed indicated at 22.

There is shown in Figure 1 a shuttle S which is, in this instance, disposed on the bottom plate ll of the shuttle box and extending from the shuttle S to the warp yarns 2| and disposed 23 which passes over a conventional breast beam justable angularly so as to conform to the rear plate of ashuttle box to thus allow the resilient means to grasp the filling thread regardless of its position relativ to the shuttle box plate;

I fiome of the, objects of the invention having 25 and extends downwardly to a conventional' wind-up means, not shown.

The breast beam 25 is mounted on a conventional upwardly extending portion 26 of the loom frame and has secured on the left-hand end thereof a conventional shipper lock bracket 30 having a slot 3| therethrough at one end of which is a shoulder 32 which, when the loom is operating, serves to hold a conventional shipper handle'33 in an operating position.

Pivotally secured on the upper surface of the breast beam 25," as at 31, is a conventionalfilling therewith and the filling motion stand 42 has a spring perch 41 integral therewith, and connected to the spring perches *EGaI-id 4! are the two ends of a, tension spring 48, to thus-urge the filling fork slide M to the left in Figures 3 and 4 against the right-hand vertical surface of' the filling motion stand 42.

The filling fork slidez ll has a gooseneck portion 5% integral therewith which extends outwardly overthe lay ID in Figure? and'thisigoose 'neekportion as has a slot'fil therethroughJin which is pivotally mounted, as'at 52; an improved filling fork holder 53. This'filling. fork holder 53 has integraltherewith a U-shaped wire member 54 and, as may be obs'erved in Figure 4;this wire "54 is adapted tointermittently engage a shouldered portion 58 of a conventional filling motion hook or snake head'El'which is pivotally'mounted atone end, as at 58, on' the upper end of a conventional filling cam follower "dog 65, which is caused to-oscilla-te atits upperen'd in a-horizontal plane, by conventional means, not shown.

The free end of the filling motionhook '57 slidably engages a transverselportion 65 which --is integral with the gooseneck, portion 53 and spans the slot 5 I.

'The filling fork holder 4| has integral therewith, at the end opposite from the gooseneck portion 50, anoutwardlyprojectingportion l'flvwhieh extends outwardly beyond the breaSt beam JZE and engages a conventional fillingmotion finger IIJ which isfiXedlymounted-pn aconventio-nal ventional magazine or hopper, not 'show-n, .to-the shuttles.

All of 1 the parts heretofore described :-are-conventional parts of a loom and it "is with these parts that thisinvention is-sadapted to besassociated.

Although this invention is shownaas being appliedto thedeft-handuendtof-theloom,--that "is,

adjacent the left-handend ottheilay it is-ev-i dent that an identical assemblymay-Joe usedat the opposite end of the lay-withthemartsopposite hand, and it is'thus not deemedinecessary to describe the structure at both endgofthe-lay.

The bolt 52, on which the filling fork iholder' 53 is pivotally mounted, secures an inverted l:-

' :shaped guide member fi il to one sidevot thelg-ooseneck portion 56 of thesfillingiorksl-ide- IIsand this inverted l -s-haped- --gui'demembereafi has"- an arcuate slot- 8 l t-herein which is, penetrated bynan -adjustment screw 82 whichristthreadablyim- "beddedin the portionfill. The invertedsLl-shaped "member-"8i! has ea downwardly sexte'ndingilegeiifi having an elongated' adj ustmentislot 85 therethrough, a which .is -penetratedr bysaubolt 81.

The bolt 3? securesaalguide-block SU-tmtheleg 85 of the member 8B2andlthis-block --9I]-vl'las mounted therein, for horizontal islidin .movement, horizontally disposed and superposed starting-rod which, when it is cause'dito partially rotate in :a counterclockwise direction, "as observedin Figure 3, will-cause thevoperation'of transferring. afreshsupplybffilling.froma conleftto right iniFiguresle and 3 and the .event shafts BI and 92. The shafts BI and 92 extend to the left from the block 90, as observed in Figures 3 and 4, and have integral therewith a verticallly disposed plate 95 which has adhesively or otherwise secured thereon a resilient pad 96. Surrounding the horizontally disposed shafts SI and 92, and disposed between the block and the vertical plate 95, are compression springs 91 and 98- respectively.

lhreadably mounted ion the shaft-E92 are adjustment means in the form of nuts I00 for adlusting the distance between the vertically disposed guide block 90 and the vertical plate 95. 'Ihe conipre s'sionsprings 9'! and 98 are adapted to urge the plate 95 and the resilient pad 96, which is integral therewith, outwardly to the left as o'bser'ved in Fi'gures 3 and 4, and as the lay Ill movesfrom the position shown in Figure 4 to the beat-up position or as is shown in Figure 3, the plate I2 engages the left-hand vertical surface "of the pad 96 and "thus "moves'the same to the 'left' as observed-in Figures 3 "ands against-the resistance'of the springs 98and9'l, andif there is ashuttle in the "shuttlebox there is, of course, "disposed between "the warp .yarns 2| "and"'the :shuttle S 'a weftorfilling' thread24.

" It maybe observed in Figure 1 that'thereiis an openin "*2? disposed between the conventional "reed "20 and the conventional"verticaliplate I2,

and normally this opening has "disposedtherein a "grid against which 7 the "weft or filling "thread '26 is "urged by'the filling .fotkasthe lay moves to a beat-up "position.

However, in.this'instance, it is "advantageous to"eliminate thegrid'member and 'insteadlof a "conventionalfilling fork there isf'provided a substantially vertically disposed "finger I Iifl "which is curved at its upper end over the"fil1ingffork holder'53 and has an elongated slot I I I therethrough which isip'enetrated by, a screw I I! (Figure 2), the screw being threadablyi imbedded' in the"fill ingi iork' holder- 53 to thus secure thefinger I til l to the filling fork holder 53.

It isthus seen thatwhen theshuttle 'S has drawn. a weft or 'filling thread across theiop'ening "2'1, and as the lay moves forwardlyfromitheiposition shown inFigure 4-.to the, position shown in Figure-3,.the resilient padJEIB engages andclamps the weft yarnZ l against the verticaliplate I2 and thus holds the sameltautbetween the warpyarns andi-thetplate I2, so' that when the-'fingerJ wen- ;gages the weftthreadlzd, theifreeend.of-thefinsger 1 ID will move.in..a.counterclockwise direction from the, position 'shownlin Figure .4. to theaposition.showninTFigureLS to thusccause partiaLr-otation-of the Ifillinglfork. holder -53 and ltol also .raise thel free end. of the lwirelmemberifi l.

.7120 1 clarify a the i operation of "the 1 device, agpos'ltion indicated in .dotted linesv and designated :at 9611 in Figured: is1shown=t0- .be that. location in which the resilient. .padl9li engages the-vertioally disposedlplate I 2 to .clarnp 'theffilling Lfthread I24 against the-plate I2.

'INow, every time .fthe'lay .movesato' albeataup position, .the "filling .motionllhookf 5'Lmovesffrom that there is nolweft threaddfliin thelpathiof thel lower end :01" the finger I I'll, thelfreeeendpf the wire: member54 will. not be raised, .andlthus the wire member-T54 will be engaged byithefshouldered ,poittionf55 of i-the-ffillingemotion hook'I'51, w and thus, as ..the Qfilling motionshook l 51 moves from: the position :shown in Figure 4 to: therposition of Figure ,3, .the =wire member 54 will ;,-pull the gooseneck portion 50 as well as'the "filling 5 fork slide 4| to the left in Figure 3 against the resistance of the tension spring lli.

As the filling fork slide 4| moves from left to right in Figure 3, the rear surface of the same engages the conventional filling motion shipper lever 40 to thus partially rotate the sam about its pivot point 37 and its other end being in engagement with the shipper lever 33, moves the shipper lever rearwardly out of engagement with the shoulder 32 and into the slot 3| where it will automatically move from right to left, as observed in Figure 1, and will shut off the loom in a conventional manner.

In the drawings and description there has been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a generic and descriptive sense only, and not for purposes of limitation, the scope of the invention being defined in the claims.

I claim:

1. In a loom having a lay, said lay having a shuttle box, said shuttle box having a vertical plate integral therewith, a reed disposed on the lay, said reed and said vertical plate being spaced apart from each other on the same vertical plane to thus form an opening between the same, a shuttle adapted to enter the shuttle box, said shuttle having a weft or filling thread extending from the same across the opening, said loom having a filling fork slide in which a filling fork is pivotally mounted, an inverted L-shaped guide member having the free end of its shorter leg pivotally secured to one side of the filling fork slide, the short leg of said guide member having an arcuate slot therein, an adjustment screw penetrating the arcuate slot and being threadably embedded in the filling fork slide, upper and lower horizontal shafts slidably mounted in the guide member, a substantially vertically disposed plate secured to one end of the horizontal shafts, spring means disposed around each of said shafts for urging the vertically disposed plate away from the guide member, adjustment means on one of the shafts adapted to engage the side of the guide member remote from the spring means for adjusting the position of the vertically disposed plate relative to the guide member, said vertically disposed plate adapted to be intermittently engaged by the vertical plate integral with the shuttle box for clamping the filling thread therebetween to hold the thread taut and thus prevent the same from being forced through the said opening by the filling fork and said vertically disposed plate being adapted to recede toward the guide member as the lay moves to a beat-up position, said adjustment screw associated with the arcuate slot being provided for adjusting the angularity of the vertically disposed plate.

2. In a loom comprising a lay, a shuttle box mounted on the lay, said shuttle box having a vertical plate integral therewith, a shuttle associated with the lay and having a weft or filling thread extending from the same, said loom having a breast beam on which is mounted a filling motion stand, said filling motion stand having a filling fork slide slidably mounted therein, a filling fork holder pivotally mounted in that end of the filling fork slide which is disposed adjacent the lay, a bolt penetrating the filling fork slide and on which the filling fork holder is pivotally mounted, an inverted L-shaped member having the free end of its shorter leg pivotally mounted on one end of the bolt and secured against the outer side of the filling fork slide by the same, the shorter leg of the inverted L- shaped member having an arcuate slot intermediate its ends, a screw loosely penetrating the slot and being threaded into the filling fork slide. a guide block secured to the longer leg of the inverted L-shaped member, said guide block having horizontally disposed shafts slidably mounted therein, a vertically disposed plate integral with said shafts, a resilient member secured to the vertically'disposed plate, compression springs disposed between the guide block and the vertically disposed plate and surrounding said shafts to thus urge thevertically' disposed plate and the resilient member associated therewith in a lateral direction away from the guide block, said resilient pad being adapted to engage the filling thread and clamp the same against the vertically disposed plate as the lay moves to a beat-up position, and said compression springs permitting the vertically disposed plate associated with the resilient pad to be moved by the vertically disposed plate on the shuttle box as the lay moves to a beat-up position to thus hold the filling thread taut while it is engaged by the filling fork, the end of one of the shafts remote from the vertically disposed plate having adjusting nuts mounted thereon to limit movement of the shafts against the pressure of the springs on the shafts.

IVAN W. MABRY.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STA'I'ES'PA'I'ENTS Number" Name Date 721,206 Lee Feb. 24, 1903 794,685 Scarboro July 11, 1905 2,018,650 Bahan Oct. 29, 1935 2,090,726 Golden Aug. 24, 1937 

